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net: dsa: hellcreek: Add STP forwarding rule

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[ Upstream commit b7ade35eb53a2455f737a623c24e4b24455b2271 ]

Treat STP as management traffic. STP traffic is designated for the CPU port
only. In addition, STP traffic has to pass blocked ports.

Fixes: e4b27ebc780f ("net: dsa: Add DSA driver for Hirschmann Hellcreek switches")
Signed-off-by: Kurt Kanzenbach <kurt@linutronix.de>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Kurt Kanzenbach 2021-12-14 14:45:06 +01:00 committed by Greg Kroah-Hartman
parent 06baf7c33c
commit c2be5908dd
1 changed files with 14 additions and 0 deletions
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14
drivers/net/dsa/hirschmann/hellcreek.c
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@ -1074,6 +1074,17 @@ static int hellcreek_setup_fdb(struct hellcreek *hellcreek)
.reprio_tc = 6, /* TC: 6 as per IEEE 802.1AS */
.reprio_en = 1,
};
static struct hellcreek_fdb_entry stp = {
/* MAC: 01-80-C2-00-00-00 */
.mac = { 0x01, 0x80, 0xc2, 0x00, 0x00, 0x00 },
.portmask = 0x03, /* Management ports */
.age = 0,
.is_obt = 0,
.pass_blocked = 1,
.is_static = 1,
.reprio_tc = 6,
.reprio_en = 1,
};
int ret;
mutex_lock(&hellcreek->reg_lock);
@ -1081,6 +1092,9 @@ static int hellcreek_setup_fdb(struct hellcreek *hellcreek)
if (ret)
goto out;
ret = __hellcreek_fdb_add(hellcreek, &p2p);
if (ret)
goto out;
ret = __hellcreek_fdb_add(hellcreek, &stp);
out:
mutex_unlock(&hellcreek->reg_lock);